Don’t know what I did wrong

I’ve been talking to this guy since June 1? June 3 we finally decided we should meet up and get coffee and talk to each other in person . Instantly when we met we had an amazing connection The next day we decide to hang out again so went over to his house and we laughed and talked and drink wine and everything was still amazing throughout that week we continuously were seeing each other every day and he said he wanted to start dating me but not be exclusive which I was fine with and totally understood where he was coming from and thought he was going to come around soon and we continue see started seeing each other all the time still and he would complement me and say how amazing I was and how much of a connection we both had with each other till June 22 he vanished and it was as if what we had was nothing. It is just hurting me because I gave my all to the guy and boom he can leave me in a heartbeatAnd of course I’ve been on dates since he’s disappeared but every day I go on I compare them to him and it’s just not healthy for me or of the guys who want to develop something real with me.